Accession Number : ADD002502

Title :   System to Process Antenna Beams to Obtain the Angular Location of Target with High Resolution and Accuracy.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Behnke,Marvin C

Report Date : 03 Feb 1976

Pagination or Media Count : 9

Abstract : This invention relates to radar systems and in particular to radar receiving systems for determining angular location with a high degree of accuracy. The system comprises a set of 16 antennas disposed so that their beams overlap to cover completely some sector of area; a mixing system to provide a plurality of I.F. signals; a first detector for each I.F. signal which applies this signal to a comparison and display system which determines and then displays whichever of the I.F. signals has the strongest amplitude; a second detector for each I.F. signal which applies said I.F. signal to a circuit which combines the plurality of I.F. signals into two sine-waves, these two sine-waves being applied to the vertical and horizontal deflection plates of an oscilloscope. The oscilloscope display expands the azimuth of the target path across to each of the 16 beams from 2 degrees to 90 degrees. Thus the target location within a particular beam can be determined very accurately. A light display indicates which particular beam is being traversed at any particular time.

Descriptors :   *Radar tracking, *Patents, Azimuth, Radar targets, Radar beams, Signal processing, Accuracy, Radar antennas, High resolution

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE